XLB open interest by strike
From the closing options book · October 20, 2026 · updated after every close
At the October 20, 2026 close, XLB options within 45 days held 18,365 calls and 14,708 puts in open interest, a put/call ratio of 0.8. The biggest call strike near the money was 51 and the biggest put strike 49.
XLB open interest by strike, within 5% of the close
51 carried 5,290 calls and 49 carried 4,252 puts.
Open interest counts contracts still open after the close; it settles overnight. Large strikes are where dealer hedging is concentrated, which is why open interest feeds the gamma levels and max pain on the other XLB pages.
These are the October 20, 2026 closing numbers. Members see XLB's map move live all session.
Common questions
18,365 calls and 14,708 puts within 45 days at the October 20, 2026 close.
51 near the money, with 5,290 contracts.
49 near the money, with 4,252 contracts.
Compare: open interest by strike on other tickers
Measured from the closing options book and rebuilt after every close. Nothing on this page is live. Levels are where dealer hedging is concentrated, not targets or forecasts. Not investment advice.